Solid oxide fuel cell-internal combustion engine hybrid system for ships fueled by ammonia
- 주제(키워드) Solid oxide fuel cell , Internal combustion engine , Hybrid system , Ammonia , Ship
- 주제(기타) Energy & Fuels; Engineering, Chemical
- 설명문(일반) [Choi, Wonjae] Ewha Womans Univ, Div Mech & Biomed Engn, 52 Ewhayeodae Gil, Seoul 03760, South Korea; Ewha Womans Univ, Grad Program Syst Hlth Sci & Engn, 52 Ewhayeodae Gil, Seoul 03760, South Korea
- 관리정보기술 faculty
- 등재 SCIE, SCOPUS
- 발행기관 ELSEVIER SCI LTD
- 발행년도 2025
- URI http://www.dcollection.net/handler/ewha/000000245591
- 본문언어 영어
- Published As https://doi.org/10.1016/j.fuel.2024.134201
초록/요약
This paper presents a numerical exploration of the operation of a solid oxide fuel cell-internal combustion engine (SOFC-ICE) hybrid system for ships powered (partially) by ammonia. The efficiency of this hybrid system was found to be 15% higher than the SOFC stand-alone system. The study also examines the design of the hybrid system, considering both performance and spatial constraints. While the overall system efficiency showed minimal variation with changes in the fuel utilization factor (UFfuel), it is crucial for UF fuel to remain above 0.5 to mitigate NOx emissions. In addition, to address the constraints imposed by the engine's storage space, we determined that the minimum SOFC size should be 0.93 when UF fuel is set to 0.5. Importantly, this study contributes to overcoming performance challenges associated with limited space on ships during system design. We highlight the system's capability to effectively adapt to rapid load changes using the engine based on an analysis of turbocharging and the addition of extra ammonia.
more